William k



(No Model.

W. K. MACKENZIE 8: C. CHAMBERLAIN.

AIR AND LIGHT PORT FOR MARINE VESSELS.

No. 552,536. Patented Jan. 7, 1896.

DNTTEED STATES PATENT I CFFTCE,

'WILLIAM K. MACKENZIE AND CHARLES CHAMBERLAIN, CF IVASHINGTON, DISTRICT OF COLUMBIA.

AIR AND LIGHT PORT FOR MARINE VESSELS.

SPECIFICATION forming part of Letters l Patent No. 552,536, dated January '7, 1896. Application filed February 19, 1895. Serial No. 538,942. (No model.)

To aZZ whom it may concern:

Be it known that we, WILLIAM K MACKEN- ZIE and CHARLES CHAMBERLAIN, citizens of the United States, residing at \Vashington, in the District of Columbia, have invented certain new and useful Improvements in Air and Light Ports for Marine Vessels and we do the rings of the same from the inner side, and

Fig. 6 a perspective view of oneof the bearingblocks.

Letters of like name and kind refer to like parts in each of the figures.

The principal object of our invention is to provide a simple, effective and durable means for closing and unclosing the air and light ports of marine vessels. T,

While we have applied said invention to the lighting and ventilating of marine vessels, we would have it understood that we do not limit ourselves to such use.

Our invention consists in a stopper or closure for light and ventilating openings, means for pivoting the same in said openings, and means for locking the said stopper or closure in'any desired position and forming a watertight joint when closed.

In the carrying of our invention into practice we provide within the air and light port a of a ships side A a frame or part B, which is of a size and shape exteriorly to fit snugly the said port a.

The outer end of the frame or part B is provided with a flange Z) by which it is bolted to and supported in the ships side.

The circular interior of the frame or part B has near its outer end a circumferential groove 1), in and guided by which are located the bearings for the port stopper. or closure C, to be hereinafter described.

Just in rear of the groove Z) the bore of the frame B is somewhat greater in diameter than screw-threads on both frame and ring are preferably deep, coarse and square-shaped, for a purpose to be described.

, The stopper or closure C is composed of the two-part frame and a light-lens and is mounted upon the pintles 6, provided upon the bearing-blocks E, located in the circumferential groove 1) of the frame B. The two-part frame consists of the two rings a and 0, each of which has within its inner face a circumferential recess 0 which receives and contains the outer circular edge or periphery of the light-lens F, such lens being permanently secured, preferably by cement, to one part of the two-part frame. I

The bearing and sliding blocks have such size and shape in crosssection as to substan tially fill the groove 1? and to be capable of sliding-freely therein, and in side elevation they conform to the curvature of said groove and are of such length as to form a good and sufficient bearing for the stopper or closure C.

The pintles 6 upon which the stopper is pivoted project from the blocks E and enter sockets c in the periphery of the two-part frame of the stopper C, one-half of each socket being formed in each ring forming the two-part frame.

For fastening the two parts of the two-part frame together we preferably employ screws the heads of which are countersunk so as to bring their heads flush with the outer face of the ring through which theypass. Th us it will be seen that we have produced a stopper or closure for the air and light ports of marine vessels mounted in such manner as to be capable of being rotated to any desired position and then swung to any desired angle.

The locking-ring D has within its outer end a circumferential groove d, which, when the said ring is screwed to its outer limit of its movement to lock the stopper in its closed position, registers with and forms around the joint between the frame and stopper an airspace or water-seal, but should the ring D, from any cause, fail to make a water-tight joint, the screw-thread joint between the frame 13 and said screw-ring D will act to prevent the water from finding its way into the vessel.

To limit the inner movement of the lockingring, we have provided upon the inner end of the frame B a .fiat ring G whose width is slightly greater than the said end of the frame, the extra width projectinginward, as shown in the drawings, and forms a stop g. Said ring is fastened to the end of the frame by screws g whose heads are countersunk so as to leave no projections from the inner face of the frame.

For operating the screw and locking-ring D we have provided the handles or knobs (1 located as shown in the drawings.

The locking-ring is not only capable of looking the stopper in its closed position, but also acts to hold it in any desired open position.

In Fig. 1 the stopper or closure is shown in full lines as closed and locked, and in dotted lines opened and locked.

It is obvious that by our construction the stopper or closure can be turned to any desired open position, and by turning the lock-ring outward until the inner periphery of the outer end of such ring comes in contact with the outer edge of the closure or stopper, locked in such open. position.

Just outside of the circumferential groove 1') the mouth of the frame or part B has an outward curve or flare Z) for the purpose of preventing accumulation of water at such point. 71th this construction any water striking upon said flaring portion of the frame will immediately run olf, which in the winter season prevents the formation of ice around the stopper.

As shown in the drawings the edges 0 c and d of the stopper or closure 0 and ring 1), respectively, are rounded for the purpose of preventing the cutting or marring of the same when brought in contact in the act of locking.

When desired to close the port a against both air and light we provide in the place of the stopper or closure B a solid disk of metal, which is of the same size and shape as said stopper C, and mount it upon the same bearing-pintles.

\Vhen our device is used upon war-ships and said ships in action we provide in place of the stopper or closure 0 a disk of metal similar to the one just above described, having a peep-hole in its center.

Our device is simple in construction, effective in its operation, and contained wholly within the ships side, and presenting an inner face that is flush with the inner face of the said side.

Having thus described our invention, what we claim is- 1. The combination of a frame or part having a light or ventilating opening, a stopper or closure for the latter, and means connecting the stopper or closure and the frame, whereby the former can be both rotated and swung upon its bearings substantially as described.

2. The combination of a frame or part hav ing a light or ventilating opening, a stopper or closure for the latter, means for connecting the stopper or closure and the frame, whereby the former can be both rotated and swung upon its bearings and a locking device for such stopper or closure.

3. The combination of a frame or part having a light or ventilating opening, a stopper or closure for the latter, and bearings located diametrically opposite each other and pivotall y supporting the stopper or closure, the said bearings being movably mounted in the frame whereby the stopper or closure can be both rotated and swung upon its bearings.

l The combination of aframe or part having a light or ventilating opening, a stopper or closure for the latter having within its periphery sockets adapted to receive and contain bearing pintles, the latter being mounted and having movement in the said frame whereby the stopper or closure can be both rotated and swung upon its bearings.

5. The combination of a frame or part having light or ventilating opening, a stopper or closure for the latter, means connecting said stopper or closure and the frame, whereby the former can be both rotated and swung upon its bearings, and a locking ring, sub stan tially as and for the purpose specified.

6. The combination of a frame or part having light or ventilating opening, a stopper or closure for the latter, means connecting such stopper or closure and the frame whereby the former can be both rotated and swung upon its bearings and a locking ring provided with coarse square screw threads fitting and working in like threads in the frame, substantially as and for the purpose set forth.

7. The combination of a frame or part having a light or ventilating opening, a stopper or closure for the latter composed of a two part frame with light lens, means connecting said stopper and the frame whereby the former can be both rotated and swung upon its bearings, and a locking ring substantially as and for the purpose shown.

8. The combination of a frame or part having a circular opening and a circumferential groove, bearing blocks within and guided by said groove and a circular stopper or closure mounted at diametrically opposite points upon said bearing blocks, substantially as and for the purpose shown.

9. The combination of a frame or part hav ing a light or ventilating opening, a circumferential groove, bearing blocks within said 'groove, a stopper or closure mounted on said blocks, and a screw ring fitting and having movement in the screw threaded portion of the frame or part, which serves to lock the stopper or closure, substantially as and for the purpose shown and described.

7 10. The combination of aframe or part having a light or ventilating opening, a stopper IIO or closure for the latter, means connecting the stopper or closure and the frame whereby the former can be both rotated and swung upon its bearings, and a lockin g device to lock the stopper or closure in its closed or opened positions.

11. The combination of aframe or part having a light or ventilating opening and a circumferential groove, a stopper or closure for the opening mounted upon bearings in and guided by said groove, whereby the said stopper or closure can be both rotated and swung upon its bearings, and a locking ring adapted to lock the stopper or closure in its closed or opened positions.

12. The combination of aframe or part having a light or ventilating opening, a stopper or closure for the latter mounted upon bearings on or in said frame, and a locking device provided with a circumferential groove in its outer face which registers with and forms an air space around the joint between the said frame and stopper, substantially as and for the purpose specified.

13. The combination of a frame or part having a light or ventilating opening, a circumferential groove and screw threads, a two part stopper or closure mounted upon bearings in and guided by said circumferential groove, a screw locking ring having within its outer face a circumferential groove and means for turning said ring to lock the stopper or closure in its closed or opened positions and a stop on the frame for limiting the screw ring in its inward movement, substantially as and for the purpose described.

W'ILLIAM K. MACKENZIE. CHARLES CHAMBERLAIN.

l/Vitnessesz JAs. EflurcnnvsoN, G. L. HUTCHINSON. 

